TEL
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
tetraethyllead (or tetraethyl lead, tetra-ethyl lead); a gasoline additive to boost octane rating
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
A label for telephone number.
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “TEL” mean?
tetraethyllead (or tetraethyl lead, tetra-ethyl lead); a gasoline additive to boost octane rating
Is “TEL” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.